Bookbinding.



No. 795,611. PATBNTED JULY 25, 1905.

. A. TLHESTMARK.

BOOKBINDING- Arrmu'nonnnnn r123. 11, 1905.-

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BOOKBINDING.

Specification of Letters Patent.

Patented July 25, 1905.

Application filed February 11, 1905. Serial No. 245,238.

To all whom it may concern:

Be it known that I, ALFRED T. IIESTMARK, a citizen of the United States of America, residing at Ogden, in the county of Weber and State of Utah, have invented certain new and useful Improvements in Bookbindings, of which the following is a specification.

This invention relates to bookbinding, and particularly to a device of a temporary binding, whereby a blank and filler may be employed with a number of fillers successively.

An object of this invention is to provide novel means for attaching the filler and retaining it against accidental displacement and also for protecting the edge of the filler and at the same time affording an ornamental finished appearance at the junction of the filler and securing means.

Furthermore, an object of this invention is to provide a securing device having a horizontal swing whereby the removal and application of the filler is permitted without entirely disconnecting the retaining member.

Afurther object of this invention is to provide a filler having notches to receive the retaining-posts of the temporary bindin in order to prevent dislodgment of the fiIler by force exerted longitudinally of the said filler.

Finally, an object of this invention is to provide a temporary binding and filler having a neat appearance and proving comparatively inexpensive to produce and maintain.

With the foregoing and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set forth.

In describing the invention in detail refer ence will be had to the accompanying drawings, forming part of this specification,wherein like characters denote corresponding parts in the several views, in which Figure 1 is a view in perspective of a book embodying the invention. Fig. 2 is a perspective view of a fragment of a book with a part broken away to show the relation of the filler and the retaining device, the said retaining device being moved on its pivot out of engagement with the filler. Figs. 3 and 4 are enlarged sectional detail views of the device.

In the drawings, A denotes the front and back of a book, and B a strip of metal riveted or otherwise secured at the rear end of the back, the said strip having end posts or lugs C, the inner faces of which are rounded.

The end posts are provided with threaded bolts or screws E F, the latter of which is in the nature of a thumb-screw and is designed to be readily applied or removed for the purpose of clamping the retainingbarG in place. The screw E acts as a pivot for the bindingstrip, and the corner of said binding-strip is preferably rounded, as shown at H, to the contour or approximately the contour of the inner surface of the post, so that when said rounded edge alines with the curved surface of the post there is no obstruction to the filler I being applied or removed.

As stated, the strip is preferably riveted to the back, and when so attached it is preferably covered with a binding of leather or other suitable material for the purpose of producing a finished appearance.

The binding-strip is preferably angular in crosssectionthat is, the back of said strip stands at right angles to the top portion thereof and is adapted to abut and confine the rear wall of the filler, while the top portion of said binding-strip bears against the upper surface of the filler and when the screw F is applied serves to bind the filler against displacement.

The edges of the stub or filler near the rear edge are notched, as shown at K L, in order that the posts may lie therein when the filler 'is applied to the binding and for the purpose of strengthening the rear portion of the stub, which is engaged by the lugs, and the same is reinforced by the binding M, which is secured in place by the staples or other means utilized for binding the sheets of the stub.

The construction, operation, and advantages will, it is thought, be fully understood from the foregoing description, it being noted that various changes may be resorted to in the proportions and details of construction for successfully carrying the invention into practice without departing from the scope thereof. 7

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

In combination, a suitable back, a strip secured thereto, lugs at each end of the strip having their inner faces rounded, a bindingstrip approximately L shape in cross-section ivoted near one end to one of the lugs and aving an aperture near the opposite end, a thumb-screw threaded in the remaining lug and adapted to pass through the aperture of the binding-strip to hold said strip in its operative position, a filler having notches in its sides to receive the lugs of the strip and ada ted to be clamped to the back by the bin ing-strip, and a reinforce secured to the filler for the portion engaged by the bindingstrip.

In testimony whereof I affix my signature, in the presence of two Witnesses, this 31st day of January, 1905.

ALFRED T. HESTMARK.

Witnesses:

A. A. WENGER, VALENTINE GIDEoN. 

